Detonate corpses

You cause up to five Small or Medium corpses that you can see within range to explode in a hail of bone shards. Each creature within 20 feet of a detonated corpse takes 4d10 piercing damage, or half as much damage with a successful dexterity saving throw.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d10 for each slot level above 5th.